MATINAS BIOPHARMA HOLDINGS I (MTNB) Institutional Ownership Changes & 13F Activity
MATINAS BIOPHARMA HOLDINGS I (MTNB). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Renaissance Technologies LLC, Citadel Advisors Llc, Xtx Topco Ltd, Geode Capital Management, Llc, and Susquehanna International Group, Llp.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Citadel Advisors Llc | Sell | -36,233 | -70.1% | 15,465 | $9.46K | Q2 2026 | Sep 02, 2026 |
| Susquehanna International Group, Llp | Buy | +1,765 | +12.3% | 16,093 | $9.85K | Q2 2026 | Aug 14, 2026 |
| Ifg Advisory, Llc | Buy | +10 | — | 10 | $6.00 | Q2 2026 | Aug 14, 2026 |
| Osaic Holdings, Inc. | Buy | +2 | +4.0% | 52 | $31.00 | Q2 2026 | Aug 14, 2026 |
| Renaissance Technologies LLC | Buy | +42,470 | +148.7% | 71,040 | $43.48K | Q2 2026 | Aug 13, 2026 |
| Vanguard Fiduciary Trust Co | Sell | -961 | -5.3% | 17,316 | $10.60K | Q2 2026 | Aug 13, 2026 |
| Geode Capital Management, Llc | Sell | -16,035 | -24.6% | 49,135 | $30.08K | Q2 2026 | Aug 12, 2026 |
| Blackrock, Inc. | Buy | +612 | +1.2% | 50,262 | $30.76K | Q2 2026 | Aug 07, 2026 |
| Sbi Securities Co., Ltd. | Buy | +1 | +9.1% | 12 | $7.00 | Q2 2026 | Jul 23, 2026 |
| Xtx Topco Ltd | Sell | -20,706 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Fmr Llc | Sell | -7 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Mai Capital Management | Sell | -2 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Eversource Wealth Advisors, Llc | Sell | -85 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
| Steward Partners Investment Advisory, Llc | Sell | -61 | -100.0% | 0 | $0.00 | Q2 2026 | May 08, 2026 |
| Ubs Group Ag | Sell | -184 | -100.0% | 0 | $0.00 | Q2 2026 | May 05, 2026 |
Frequently asked questions about MTNB activity
Which institutional owners are buying MTNB?
Institutional owners buying MTNB include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in MTNB activity?
"Buy" means an investor increased their reported position in MTNB compared to the prior reporting period. This reflects growing exposure to MATINAS BIOPHARMA HOLDINGS I (MTNB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in MTNB increasing?
Institutional interest in MTNB can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.